4 tidal zones



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4 TIDAL ZONES


  1. High Tidal Zone: *periwinkle snails

          • Lichens

          • Limpets

            1. Chitons found in upper and upper midtidal




  1. Upper Mid-tidal: * balanus

            1. Grey barnacle higher

            2. White displaces lower

  2. Lower mid-tidal: cal muscle

          • Lottia farm

          • Gooseneck barnacle

  3. Lower Zone: Surf grass / kelp

          • Sponges majority textured

          • Tunicates majority slimy

          • Anemones

          • Hydroids

          • Welks

          • Sea stars

          • Nudibranchs

Anemones: 3 main spp all anthoplura



  1. eligantisama – ¼ sized white aggregate- decorate w/shells

  2. sola- peach colored- rays on oral disc

  3. xanthagramatica- large green

Baranacles:



  1. Thamalus - oval- overlapping plates

  2. balanus - diamond shaped plates sink in

  3. tetrachitra- larger pink

  4. polupes calimerus – goose-necked barnacles

Gastropods:

*herbivores


  1. tegula brunea - larger tegula more conical green shell found lower mid

  2. lottia gigantea – secretes mucous providing fertilizer for microalgae

  3. lottia scabra - limpet with scalloped edge

  4. lottia digitalis – smooth edged scallop

  5. litterina – small black

    1. carnivores

  6. dog welk- conch shell shape w/o tooth

  7. acanthinea – conch shell shape w/ tooth to drill into muscles

Chitons:



  1. nettilina long, skinny, narrow plate margin

  2. mopalia bristly, oval, larger



Starfish


    • pisaster ochreaceus – purple and orange

Urchin


    • strongylucentra purpuratus

    • frasoscaus – larger reddish

Crab


Cancer – animerious - Large

Pacygrapsis - lined shore crab

- hermit crabs




Trimusculus orticulatus


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